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Figure 7: Fluorescein fundus angiograms (a, c, d) and a fundus photograph (b) of right eye of an atherosclerotic monkey before and after intravenous infusion of serotonin.(a) Baseline angiogram during retinal arteriovenous phase, showing normal filling of the central retinal artery, the retinal vasculature, and the choroid, one week before (b, c). (b, c) During infusion of serotonin (b) is a black and white fundus photograph about 2 min after the start of serotonin infusion, showing evidence of CRAO, including pale optic disk, retinal opacity, and cherry red spot at fovea. (c) An angiogram about 4 min, after the start of serotonin infusion, shows normal filling of the choroidal circulation but complete occlusion of the central retinal artery. (d) An angiogram during regression phase shows once again normal filling of the central retinal artery and the choroid |
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